p53, K-ras, c-kit and β-catenin gene mutations in sinonasal NK/T-cell lymphoma in Korea and Japan

  • Authors: Tadashi Hongyo, Yoshihiko Hoshida, Shin-ichi Nakatsuka, Mukh Syaifudin, Shizuo Kojya, Woo-Ick Yang, Yoo-Hong Min, Heekyung Chan, Chan Hwan Kim, Yasuaki Harabuchi, Tetsuo Himi, Masao Inuyama, Katsuyuki Aozasa, Taisei Nomura
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  • Published online on: Tuesday, February 1, 2005
  • Pages: 265-271
  • DOI: 10.3892/or.13.2.265

Abstract

Mutations of p53, K-ras, c-kit, and β-catenin gene were examined in 100 cases of sinonasal NK/T-cell lymphoma (NKTCL) from Korea and Japan. Age of patients ranged from 12 to 72 (median 41.0) in Korea and 27 to 82 (median 61.0) years in Japan. Gene mutations were analyzed on paraffin-embedded specimens by PCR-SSCP followed by direct sequencing. p53 is a well-known tumor suppressor gene. c-kit gene encodes a receptor tyrosine kinase, which plays a crucial role in proliferation and differentiation of hematopoietic stem cells. Mutations of K-ras and β-catenin are frequently observed in cancers. Thirteen of 42 (31.0%) cases from Korea and 36 of 58 (62.1%) from Japan had p53 mutations, showing significant differences in the incidence of p53 mutation between two countries. Of the Japanese cases 18 (31.0%) had mutations in exon 4, while only 3 cases (7.1%) were found in Korea cases (p<0.01 by χ2 test). K-ras, c-kit and β-catenin mutations were also found in higher incidence in Japanese cases. In conclusion, different frequency of p53 mutations with different pattern of exon involvement and difference in age of disease onset is evident between sinonasal NKTCL in Korea and Japan.
Journal Cover

February 2005
Volume 13 Issue 2

Print ISSN: 1021-335X
Online ISSN:1791-2431

2013 Impact Factor: 2.191
Ranked #33/202 Oncology
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APA
Hongyo, T., Hoshida, Y., Nakatsuka, S., Syaifudin, M., Kojya, S., Yang, W., Min, Y., Chan, H., Kim, C., Harabuchi, Y., Himi, T., Inuyama, M., Aozasa, K., & Nomura, T. (2005). p53, K-ras, c-kit and β-catenin gene mutations in sinonasal NK/T-cell lymphoma in Korea and Japan. Oncology Reports, 13(2), 265-271.
MLA
Hongyo, Hoshida, Nakatsuka, Syaifudin, Kojya, Yang, Min, Chan, Kim, Harabuchi, Himi, Inuyama, Aozasa, and Taisei Nomura. "p53, K-ras, c-kit and β-catenin gene mutations in sinonasal NK/T-cell lymphoma in Korea and Japan." Oncology Reports Oncology Reports 13.2 (2005): 265-271.
Chicago
Hongyo, Hoshida, Nakatsuka, Syaifudin, Kojya, Yang, Min, Chan, Kim, Harabuchi, Himi, Inuyama, Aozasa, and Taisei Nomura. "p53, K-ras, c-kit and β-catenin gene mutations in sinonasal NK/T-cell lymphoma in Korea and Japan." Oncology Reports Oncology Reports 13 no. 2 (2005): 265-271.